<template>
  <view v-if="goods_info.goods_name">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular>
      <swiper-item v-for="(item, i) in goods_info.pics" :key="i">
          <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">
        ￥{{goods_info.goods_price}}
      </view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品的名字 -->
        <view class="goods-name">
          {{goods_info.goods_name}}
        </view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text >收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">
        快递：免运费  
      </view>
    </view>
  
  <rich-text :nodes="goods_info.goods_introduce"></rich-text>
  
  <!-- 商品导航组件区域 -->
  <view class="goods_nav">
    <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
  </view>
  </view>
</template>

<script>
  import  { mapState, mapMutations, mapGetters } from 'vuex'
  
  
  export default {
    computed: {
      ...mapState('m_cart', []),
      ...mapGetters('m_cart', ['total'])
    },
    watch:{
      // total(newVal) {
      //   const findResult = this.options.find(x => x.text === '购物车')
      //   if(findResult) {
      //     findResult.info = newVal
      //   }
      // }
      total: {
        handler(newVal) {
          const findResult = this.options.find(x => x.text === '购物车')
            if(findResult) {
              findResult.info = newVal
            }
        },
      immediate: true
      }
    },
    data() {
      return {
        goods_info: {},
        options: [
          {
          icon:'shop',
          text:'店铺',
          infoBackgroundColor:'#007aff',
          infoColor:"red"
        },{
          icon:'cart',
          text:'购物车',
          info:0
        }],
        buttonGroup:[{
          text:'加入购物车',
          backgroundColor:'#ff0000',
          color:'#fff'
        },
        {
          text:'立即购买',
          backgroundColor:'#ffa200',
          color:'#fff'
        }
        ]
      };
    },
    onLoad(options) {
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods: {
      ...mapMutations('m_cart', ['addToCart']),
      async getGoodsDetail(goods_id) {
        const {data: res} = await uni.$http.get('/api/public/v1/goods/detail', {goods_id})
        if(res.meta.status != 200) return uni.$showMsg()
      
      res.message.goods_introduce = res.message.goods_introduce.replace(/<img/g,'<img style="disply:block;"').replace(/webp/g,'jpg')
      
        this.goods_info = res.message
      },
      preview(i) {
        uni.previewImage({
          current:i,
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      onClick(e) {
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e) {
        if(e.content.text == '加入购物车') {
          // 组织商品的信息对象
          // {goods_id, goods_name,goods_price,goods_count,goods_small_logo,goods_state}
          const goods ={
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price: this.goods_info.goods_price,
            goods_count: 1,
            goods_small_logo: this.goods_info.goods_small_logo,
            goods_state:true
          }
          
          // 调用adToCart方法
          this.addToCart(goods) 
        }
      }
      
      
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  
  image {
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #c00000;
    font-size: 18px;
      margin: 10px 0;
  }
  .goods-info-body{
  display: flex;
  justify-content: space-between;
    .goods-name{
      font-size: 13px;
      margin-right: 10px;
    }
    .favi{
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color: gray;
      }
  }
  .yf{
    font-size: 12px;
    color: gray;
    margin: 10px 0;
  }
  
}
.goods_nav{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    
  }
</style>
